Ground anchor and method of forming same



June l me.. 1,537,329

L. CZ. JONES GROUND ANCHOR AND METHOD OF FORMING SAME Filed March l2, 1924 2 Sheets-Sheva l June 1 1926.

L.. C. JONES GROUNDANCHOR ND METHOD OF FOR IIING SAME 2 Sheets-Sheet 2 Filed March l2, 1924 Y. I Mwgf. i.; N v K 0 i@ @fp/W Patented June `l, 1926. l

y 'UNiTED's'i-Arss PATENT oFFicE.

LEE C. JONES, OF SEWICKLEY, PENNSYLVANIA.

GROUND .A NCHB AND METHOD F FORMING SAME.

Appcatiori led March 12, 1924. Serial No. 698,749.

This invention relates to an anchor for ltowers, derricks, buildings, etc., and the method of forming 'the same, and has for ijs object the provision of a novel form of anchor which may be embedded in the ground and securely held so as to resist the `strains and stresses of the upright struc-y 'yture supported thereby.

Another object is to provide a novel form of metallic anchor post' adapted to be embodied in a surroundin column of cementitious material and to e so formed that 'it will positively resist movement relative to v thcementitious material in either an up- 4of parts hereinafter ward or downward direction.

A further object is the provision oi': the novel form of ground anchor having the novel construction desi and combination (inscribed and illustrated in the accompanying drawings.

In the drawings, Figure 1 is a sectional view through the ground showing the hole into which the anchor is to be placed.

Figure 2 is a similar view showing the lower end of the hole enlarged 'forming a .cavity for the reception of the cementitious material.

Figure 3 is a similar View showing the anchor post in position. f

Figure 4 is a similar view showing the anchor post in position and a tool inserted behind one of the tongues to bend it into anchoring position.

Figure 5 is a sectional view through-the ground showing the finished anchor.

Figure 6 is a transverse section through the post showin the position of the tongues before they are lient to th'eir anchoring position.

Figure 7 is a similar view showing the i osition of the tongues after they arev bent into anchoring position.

In carrying out the invention, I prefer to first drill or otherwise provide an elongated hole 2 n the ground, then I enlarge the lower end of the holo 2 in any suitable manner to form the cavity 3. Preferably I enlarge the hole 2 to form 'the cavity 8 by introducing a charge oi explosive and exploding the same, so that the ground adjacent to the bottom of the hole will be bulged out to form the cavity El.

l then introduce the anchor post 4 into the hole 2 so that its lower end extends into the cavity 3.

'l'he post 4 may be formed from any suitable metal shape or bar. However, l prefer to use an angle shape, due to its strength. rlihe post 4 is provlded adjacent its lower end with integral anchor tongues 5 which are Yformed by cutting through the post with two parallel side cuts 6 and a cross cut 7, the narrow strip ci metal within or surrounded by the cuts forming a tongue. The tongues 5 are bent slightly outward at their upper or free ends so as to facilitate the insertion of a suitable tool between the body of the post and the tongue to bend the tongues .into a position at right angles to the longitudinal axis of the post. When the post is formed from an angle shape as shown 1n the dra-wings, the tongues 5 are preferably fornied in the opposite flanges, one

slightly above the other, and are adapted to be bent across each other.

After the post 4 is positioned in the hole 2 with its lower end extending into the cavity 3, a suitable tool such as the bar 8 is inserted between the tongues 5 and the body or fiangesot" the postand the tongues are bent down into a position at right angles to "cavity and form a column 9 terrnii'iziling at its lower end in an eiilargeii'ient or ball 10. The tongues 5 will be iiriniy embedded in the ball 10, thus formed, and will resist any movement of the post ll in either an upward or downward direction relative to the cob umn 9 ot' cenientitious material.

rlLhe column 9 and ball l() ot' ceinentitiousl' material will combine withl the post 4 to ioiman integral anchor which is efficient, inexpensive and durable.

While l have shown and described only one preferred embodiment of my invention it will be expressly understood that l do not Wish to be limited to the specific details of such eii'ibodiinent, since various modifications may be made without departing from the scope of my invention as defined in the appended claims.

l claim l. 'l`he method of providing ground anchors, which consists in providing a hole iii iio the ground with un enlarged cavity at its lower end, introducing an anchor post into fil) 5 il: 'A

the cavity, said post havinor a plurality of y entitious material. i

2. The method of providing. ground anchors, which consists in providing a hole in the ground, setting oft1 an explosive charge in the bottom of thc hole to form an enlarged cavity and to compact the Walls there of, introducing an angle-shaped anchor ost into the cavity, said post having a 'plurzgity of tongues cut along three sides and bent slightly out from its flanges adjacent their lower ends so as to permit the insertion of a suitable tool between the side faces of the fianges and the tongues, inserting a suitable tool' between said tongues and the side faces of said anges' to force said tongues outwardly and downwardly at substantially right angles to the longitudinal axis of said post, and nally filling said cavity and the space between the post and the sidde wall of the hole with cementitious material.

.post

3. A ground anchor comprising in combination a column of cementitious material having an enlarged lower end suitably mounted in the earth and a metallic anchor extending substantially centrally through said column and into its enlarged lower end, said post being provided with a p urality of integral tongues bent outwardly at substantially right angles to the longitudinal axis of said post to resist movement of said post in either an upward or downward direction relative to Said column of cementitious material.

4. A ground anchor comprising in combination a column of cementitious material having an enlarged lower end suitably mounted in the earth, and an angle-shaped Ametallic anchor post extending substantially centrally through said column and into its enlarged lower-end, 'said post being'provided adjacent its lower end with a plurality of integral tongues bent outwardly at substantially right angles to the longitudinal axis of said post, to resist movement of said post in either an upward or downward direction relative to said column of sementitious material.

In' testimony whereof I have hereunto signed my name.

Leno. JONES. 

